Report of ProgressBoard of Commissioners for the Second Geological Survey, 1875 35 vols. are atlases. |
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Συχνά εμφανιζόμενοι όροι και φράσεις
15 feet deep 20 feet abandoned acid Allentown Allentown Iron Alumina appearance beds blue ochre bottom boys are employed brown hematite Calciferous Carbon Iron clay resulting cleavage containing Crane Iron damourite slate damourite-slate decomposition deposited depth district dump excavation Ferric oxide flint Fogelsville Fogelsville cove formation forms full of water gneiss gravel gudgeon Hudson River slates Huronian impossible Insoluble residue iron pyrites Kittatinny Mountain leased by Allentown leased by Carbon Lehigh county Lehigh River Lichtenwallner's lime limestone is struck limonite M'Creath analyzed M'Creath's analysis shows Magnesia Magnesian limestone Manganese numbers occurs in seams outcrops past season Pennsylvania Phosphorus plane for hoisting PLATE Potsdam Potsdam Sandstone quarry Range of Mines Ridge sand sandstone seen shafts shale Silica Silurian slate or clay Smoyer's South Mountain south-east stripping Sulphur sunk thick Thomas Breinig's Thomas Iron Company tion tons trace Trenton underneath Valley visited washer yellow clay
Δημοφιλή αποσπάσματα
Σελίδα 60 - What seems so smooth and regular a surface conceals one of the most contorted, twisted, fractured, cleft, plicated, complicated and even overturned set of subsoil rocks in the world. Besides the three or four large and pretty regular anticlinal waves which issue from the South Mountain and the hills of Easton and strike diagonally westward up the valley toward Port Clinton on the Schuylkill, there are hundreds of sharp little rolls which seem to defy classification, and most of these are almost entirely...
Σελίδα 32 - Francis Breinig's Mine, No. 11. The large pit is full of water; it has not been worked since 1860, and is said to be exhausted. To the right is a smaller opening, which is being worked at present. The ore occurs in seams and streaks in damourite slate, and the white and yellow clays formed by its decomposition. The clay and ore pitch 18° to 25°S.80°E. The portion of the mine worked is 50 feet deep, and does not exhibit any sign of the ore being exhausted. There is a plane for hoisting the ore....
Σελίδα 35 - ... deal of flint. A good deal of the ore is pot or bomb-shell. Limestone crops up in the bottom at very varying depths owing to its having been so much water-worn. From one of the limestone caverns, water bubbles up very rapidly. The ore dips 15° S.60°E. The mud from the mud-dam, which is ochre-yellow, is carefully dried and then sent as ochre to the Blue Mountain Paint Company at Bethlehem.
Σελίδα 37 - ... yellow clay. Quartz and limestone fragments, considerable lump ore and turgite, and a little sericitic material are present. 148. Gackenbach's mine. "Leased by the Crane Iron Co. The ore occurs in this mine in yellow clay, and no damourite-slate or white clay occurs with it, so far as could be seen. There are two beds of ore in the mine, the upper one about 10 feet thick, which are separated by clay. Water-worn limestone was struck, in some places, at a depth of 60 feet ; no ore was found under...
Σελίδα 31 - ... were seen. There are several large dumps on the opposite side of the road from the pit. 149. This is a small mine hole filled with trees and brush. Two small dumps show yellow clay, quartz, sericitic and siliceous material, and lump ore. 151. Jonas Bastian's mine. "Abandoned. Shafts have been sunk to quite a depth in the bottom of the mine; but the stuff at the mouth of the shafts has been nearly all washed away. The mine is from 10 to 15 feet deep ; near the surface it is apparently ore disintegrated...
Σελίδα 18 - ... and limestone fragments were seen. Fragmental and lump ore and sericitic material abound. According to the people who own the land, limestone was once taken out from the pit. 106. Ludwig, Hertzog & Liess's mine. "This ore occurs in seams or bands in the white clay, which has a dip of 27° N.23°W. A great deal of the ore is in lumps, especially at the present bottom of the mine, which is 20 feet. The seams of ore are not regular, but suddenly stop to make a bend and then continue or stop altogether;...
Σελίδα 59 - Lesley* in 1875 aptly characterized the situation in the following paragraph describing the structures of the Cambro-Ordovician limestones. It seems a very easy matter to obtain the knowledge which we want in so open, well-formed, almost level valley, bounded on one side by a mountain faced by a well-known rock underlying the limestones, (Potsdam ss, No.
Σελίδα 23 - This lies alongside of the pit just mentioned (85) as leased by the Bethlehem Iron Company. The same remark applies to this as to the previous ones that they make a very fine show of ore, the seams appearing to be regular and in great numbers. The quantity of ore is very large and a shaft sunk 75 feet from the surface in the bottom of this excavation still showed ore.
Σελίδα 33 - Leased by the Northampton Iron Co. This is one of the oldest mines in the county, having been worked more than sixty years. The old portion of the mine is full of water and said to be 60 feet deep. The ore occurs above damourite slate, and associated with iron pyrites. It is improbable that the sulphuret of iron owes its origin to a small shallow bed of Utica shale which has undergone disintegration. It was impossible to ascertain whether the blue ochre occurred here or not. The most probable explanation...
Σελίδα 40 - ... west side contains considerable limestone fragments. 61. Jacob Steininger's mine. "Leased by James Lanigan. This mine is 25 feet deep. The brown hematite occurs in damourite slate and overlying the white clay resulting from the decomposition of the slate. The ore and slate dip 22° to 40° S.40°E. At the bottom of the mine at the north end there occur 12 feet of solid white clay with a thin streak of ore underneath. In the bottom of the excavation a shaft has been sunk to the depth of 18 feet,...